Automatic speedometer chart



Dec. 1, 1931. A, ROE 1,834,869

AUTOMATI C SPEEDOMETER CHART Filed June 16, 1931 3 Sheets-Sheet 1 UNIONInventor By 11m;

Dec. 1, 1931. ROE 1,834,869

AUTOMATIC SPEEDOMETER CHART Filed June 16, 1931 3 Sheets-Sheet 2Inventor flZeXmzder fZoe,

Dec. 1, 1931. A. l. ROE 1,834,869

AUTOMATIC SPEEDOME'IER CHART Filed June 16, 1931 3 Sheets-Sheet 3 A3 AInventor LE 0 flZeXmz darfjioe,

Patented Dec. 1, 1931 PATENT OFFICE ALEXANDER INGIiET ON ROE, ORANGE,NEW JERSEY AUTOMATIC SPEEDOMETER CHART Application filed June 16,

'15 pointed out in the appended claims.

I11 describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a fragmentary view of an instrument board of a motor vehicle showingthe invention applied thereto.

Fig. 2 is a fragmentary view of the chart or map carrying strip.

Fig. 3 is a view looking toward the closed end of the drum.

Fig. 4 is a transverse sectional View through that part of Fig. 1 whichcarries the invention.

Fig. 5 is a View of the gear wheel.

Fig. 6 is a fragmentary view of part of the dog carrying lever.

Fig- 7 is a section on line 77 of Fig. 4.

Fig. 8 is a section on line 88 of Fig. 4.

Fig. 9 is a view of the dog. Fig. 10 is a side view of the drum. Inthese drawings, the numeral 1 indicates a casing which may be attachedto the instrument board A of a motor vehicle or the like, this boardhaving an opening 2 therein with a door 3 closing the opening and havinga window 4 therein. A marker 5 is carried by the door and projects intothe window as 5 shown in Fig. 1.

A large gear 6 has a stub shaft 7 connected to the center of one facethereof and this shaft extends into a bearing boss 9 formed in one ofthe side walls of the casing. A fric- 56 tion disk 10 closes the outerend of the boss '1931. Serial No. 544,840.

and carries a set screw 11 which is threaded into the hub or stub shaft-7, these parts acting to frictionally hold the gears against rotarymovement. The gear is provided with the ratchet teeth 12 which areengaged by a dog 13 pivoted to a lever 14 which is pivotally supportedintermediate its ends by a bracket 15 in the casing. This lever has itsdog carrying'end bent at right angles as shown in Fig. 6, so as toproperly position the dog to engage the gear.

A spring 16 is connected with the lever and a part of the base andnormally holds the dog in lowered position. A leaf spring 17 pushes thedog into engagement with the teeth of the gear. That end of the lever 14opposite the end which carries the dog is engaged by a cam 18 on a.shaft 19 which is geared to a part of the mechanism of the speedometer Band the parts are so arranged that the ratchet wheel 6 will make a stepby step movement under the action of the dog and I prefer to space theteeth onetenth inch so that the ratchet will be moved one-tenth inch foreach revolution of the 7 cam which is operated by a gear of thespeedometer, which makes one revolution per mile.

A strap 20 has one end fastened to the ratchet wheel 6 as shown at 21with the major portion of the strap spaced from the wheel and acylindrical-shaped drum having one end open and has loops 22 on itsclosed end through which the strap passes so that the drum, as shown at23, can be detachably connected with the wheel 6 by placing the 35 loopsof the drum over the strap as clearly shown in Fig. 4.

The strip carrying the road map is shown at 24 and this strip is placedaround the outer circumference of the drum and has its ends passedthrough a slot 25 in the drum as shown at 26 in Fig. 4, to detachablyconnect the strip to the drum. The drum is so located with respect tothe window 4, that the strip can be seen through the window and themarker 5 cooperates with the road map on the strip to indicate to theoperator, just what position on the road he occupies.

The door '3 provides a means for removing the drum so that the strip canbe removed therefrom and a new one placed thereon, after which the drumis again put in place and connected With the Wheel 6. 7

When the teeth on the ratchet Wheel are spaced one-tenth of an inch, themap or road strip is marked in one-tenth inches in spaces,

each spaceequalling one mile, Every ten miles may be enumerated and ass'hovvn the route is represented on the drum or strip as a straightline. It maybe provided With arrows pointing in the direetion to betaken-f in cross roads or forked roads. The routes may be named ornumbered as the caseinay be. Cities may be marked by a curved line attheir boundary lines With notation marks corresponding to abookletshowing streets to be taken until the boundary line is passed Where thechart or strip is again s'etto the propel position by using some linemark -whenthe strip Will be readyto guide the operator on the nextlap-of his journey.- I

Thus the operator can readily follow th read by simply watching thestrip and this device will 'beof great aid'in night driving as thereisno necessity to stop to look-at 7 signs or inquire for directions, aseverything Having thus described for'the proper following of-a route islocated on themap. L

It is thought from 'the foregoing description that the advantages andnovel features vof the'invention Will-be readily apparent Y It to beunderstood that changes may be made in the constructionand'in-thegeomparts, providedthat such changes fall within the-scope ofthe appended claims. 11

I claim asn'ew is i 1; 'A device of the class described comprising acasingjattachedto a part of a vehicle,

rocking the same, and means for operating the earn from a part of thespeedometer.

' 3. In combination with a motor vehicle including an instrument boardand a speedometer, an opening in said board, a door closing the opening,a Window in the door, a markercarried by the door andprojecting into theWindow, a casing connected to the under face of the instrument board anden closing the Window, a ratchet Wheel rotatably arranged :ia-theeasing,friction means forresisting rotary movement of the Wheel, a leverpivoted-in the casing, a dog carried thereby engagingthe teeth of theWheel, a cam engagingthe lever for rocking the same,

means for operating the cam from a partof the speedometer, a drumdetachably connected With thewheeland adapted to be-passed through theopenings, when the ijdoor is opened, anda route strip carried by the:.dr'um.

In testimony vvhereof I afiiggmysignature.

INGLETON ROE.- 1

bination-and arrangement of the several my invention, vvhat a ratchet-wheel rotatably arranged inthe casing, a lever pivoted in the casing, adog vcarried by the lever and engaging the teeth of the wheel, a camengaging the lever, means for operating the cam from a vehicle'part,*a

drum carried bythejratche't wheel, a route strip moved by thedrumandawindow'in the casing through which a part ofthe strip isvisible; and a marker projectinginto the Window, and extending over 'apart of the iipt 2. In combination With a 'vehiele'having' a speedometerand an opening in it's instrul ment board adjacent the speedometer, adoor closing the opening, and having a Window therein, a'marker carriedby the door and projecting into the window, a casing attached to theunder face of the-instrument board enclosing the opening, a'ratchetwheel rotatengaging the teeth of the Wheel, a drum'de- 'tachablyco-nnectedwith the Wheel, a route strip carried by thedrum' and visiblethru the Window, a cam engaging the'lever for

